Analyzing the physics structure of vorticity , divergence , vertical velocity , frontogenesis " function , apparent heat source and apparent moist sink etc . indicated the physics fields are favorable for the occurance of the heavy rain over changjiang - huaihe river basin where the physics values are well according to the heavy rainstorm positions ; the low level jet is closely subject to the moisture and the coupled system of the low and the upper level jetstreams induced the strongly " ascending motion ; the intensity of the frontogenesis varies with the development of the rainfall system and reacts the rainfall intensity 主要分析了这次过程中的多种物理量，包括涡度、散度、垂直速度、锋生函数、视热源、视水汽汇等，对这一暴雨过程有了比较系统的认识。结果表明：在江淮流域存在着有利于发生暴雨的物理量场配置，涡度、散度、垂直速度等物理量，与暴雨的落区都很吻合的；低空急流的产生不仅有利于水汽的输送，而且高低空急流的耦合造成了有利于强上升运动的配置；锋生强度随着降水系统的发展变化，并影响降水强度。
